PETIA B. KREMEN MD
NPI 1861570418
Internal Medicine in San Francisco, CA

Q: What is Petia Kremen's NPI number?

The NPI number for Petia Kremen is 1861570418. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Petia Kremen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Petia Kremen was last updated on January 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment

2 W PORTAL AVE, SAN FRANCISCO, CA 94127(888) 663-6331 Get Directions Write a Review

NPPES record last updated: January 20, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Petia B. Kremen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETIA B. KREMEN MD (NPI 1861570418) is an individual internal medicine provider in San Francisco, California, licensed in California (A84772) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Jose, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1861570418

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NamePETIA B. KREMENCredential: MD

Location Address2 W PORTAL AVESan Francisco, CA 94127-1304

Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723 · (415) 658-6791

Phone(888) 663-6331

Sole ProprietorNo

Medical School CMSOtherGraduated 1995

Enumeration DateNovember 1, 2006

Last NPPES UpdateJanuary 20, 2023

NPPES CertifiedJanuary 20, 2023

✔ NPI 1861570418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A84772

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

2 W PORTAL AVE, San Francisco, CA 94127

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Secondary Practice Location 1

Location 1751 S Bascom AveSan Jose, CA 95128-2604 · Phone (408) 885-5000

Other Identifiers 1

Medicaid00A847720CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Petia B. Kremen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739120262

PECOS Enrollment IDI20050516000361

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Petia Kremen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City & County Of San Francisco

0.9 mi

Geriatric Medicine

375 LAGUNA HONDA BLVD
San Francisco, CA 94116

Reassigned Medicare billing, California enrollment
1,573 clinicians in this Medicare group

NPI 1265460190 (415) 759-3348

Ucsf Health Medical Foundation

13 mi

Multi-Specialty

747 52ND ST
Oakland, CA 94609

Reassigned Medicare billing, California enrollment
118 clinicians in this Medicare group

NPI 1922124866 (415) 476-4424

County Of Santa Clara

28 mi

Mental Health (Including Community Mental Health Center)

231 GRANT AVENUE
Palo Alto, CA 94306

Reassigned Medicare billing, California enrollment
Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
2,460 clinicians in this Medicare group

NPI 1144330614 (650) 321-5545

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

49 services45 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

40 services31 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

33 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94127 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHELSEA JOY THOMSEN M.D., M.S.P.H

Internal Medicine